package sl.sl27;

import org.apache.log4j.Logger;
import org.aspectj.lang.JoinPoint;
import org.aspectj.lang.annotation.AfterReturning;
import org.aspectj.lang.annotation.Aspect;
import org.aspectj.lang.annotation.Before;

import java.util.Arrays;

/**
 * 使用注解定义切面
 */
@Aspect
public class UserServiceLogger {

    private static Logger logger = Logger.getLogger(UserServiceLogger.class);

    /**
     * 前置增强
     * @param jp
     */
    @Before("execution(* sl.sl2.service.UserService.*(..))")
    public void before(JoinPoint jp){
        logger.info("调用"+jp.getTarget()+" 的 "+jp.getSignature().getName()+
                " 的方法。方法入参："+ Arrays.toString(jp.getArgs()));
    }

    @AfterReturning(pointcut = "execution(* sl.sl2.service.UserService.*(..))",
            returning = "returnValue")
    public void afterReturning(JoinPoint jp,Object returnValue){
        logger.info("调用"+jp.getTarget()+" 的"+jp.getSignature().getName()
                +" 的方法。方法返回值："+returnValue);
    }


}
